I personally don't like the timer model that is mentioned here having the issues. I would change the timer with a new model. 6 Station timers are not that much. Get an indoor if it is indoor. Get an outdoor if it is outdoor.
I would change the timer. The fading of that timer is not a good sign.
This is one of the least user friendly timer that rainbird has ever put out.
I put a lot of these timers in and answered a lot of phone calls how to program after sprinkler school.